Motor-vehicle.



G. W. SOHWOOB.

MOTOR VEHICLE. APPLIGATION IILBD APRJ8, 191a Patented Jan. 5, 1915.

i -mwm '2 SHEETSSHEET 1.

QWHO M,

G. W. SCHWOOB.

Patented Jan! 5, 1915.

2 sanmvsnm'r 2.

' hicles-of theclass described, by means of un saar an no enonen Wl scHWooB, or copy, WYOMING.

MOTOR-VEHICLE.

. which both the front and rear axles'and the I wheels carried thereby may be simultaneeither to one side or the other.

ously driven at equal speeds, and the axles turned simultaneously in oppositedirections for steering the machine in a curved path,

' A, further object of the invention is to provide a construction of the. character above referred to, embodying the use ofduplicate and interchangeable parts, so thatthe parts'may be readily replaced; the con struction referred to also economizing materially in the cost of construction and re-I pair of the machine asa whole. With the above and other ob ects in view,

the invention consists .in the construction,

combination and arrangement of parts, as will be hereinafter more fully described,

illustrated in the accompanying drawings,

and pointed out-in the claim hereunto appended.

In the drawings: Figure 1 a side eleva 7 tion, partly. in section, of a motor vehicle embodying the present invention. Fig. is a plan view. of the truck, showing the gear cases'in section. Fig. 3 is a side elevation, v partly in section, of a truck showing a mod].-

fied arrangement of driving, gear. Fig. 4 is a plan view of the same, partly in section. Referring to the drawings, 1 designates the parallel side bars constituting part of the machine frame, under Which are arranged the front .and rear driving axles 2 and 3, respectively. Q Each of said axles is centrallydivided, and equipped with diff erential gears such as are now in common Y use in automobile construction; each differential gear as a Whole being containedin a suitable gear case 4. The rear Wheels -5 and the front wheels 6 are fast or. their "re-- spectiveaxle sections'and are consequently driven thereby at a speed governed by the;

differential gears.

5& Z designates the crank shaft of the motor which has its end portions extended and Specification of Letters Patent.

Application filed April 18, 1913. SerialNo. 762,112.

residing at county of Park and State of .The drive shaft and, therefore, changeable and each the duplicate vof the Figs l. In

Patented Jan. 5, T9115.

mounted in bearing hangers 8 secured to the machine frame, as shown in Fig. 1. Connected to the opposite ends of the crank shaft 7 are the fore and aft sections 9 of a dr ve shaft, the sections 9 being coupled to the ends of the crank shaft by means of flanged couplings l0 and 11 fast, respectively, on the flanges being bolted together, as shown at 12.

adjacent ends of each shaft section 9a'nd the end of the crank shaft, the l Each drive shaft section 9 is provided at its outer extremity with a bevel pinionl? which meshes with and drives another pinion 14 ona short vertical shaft.15., On this same shaft 15 is another bevehpinion 16 which meshes directly With the master gear'wheel of one of the differential gears, Indicated in Fig. 1. The shaft exactly. above and as clearly 15 is located pivotal movement stant mesh, irrespective of the degree to which the axle is turned for the purpose of steer ng the machine.

length, the motor portedby the frame 1,. at a central point,

said shaft sections 'are interothen; In Fig. 2, -18 designates the motor "bearers or cross'bars which are connected at thelrcpposite ends to the side bars l of the frame, the shafthangers 8 being located'di rectlv' under the engine bearers, as shown in order to exclude dust, dirt and other foreign matter from the 'gears 13 and 14, gear cases' 19 are fitted aroundfthe-same, as shown in Fig. 1.

. Mounted on each of the axles 2 and 3 are annular bolsters 20 channeled, as shown at 21, and having a circular series of anti-- in line with the centeno'f g of the'adjacent axle,'so' that the gears; referred to remain in consections 9 are of equal (not shown) bein'g-supfriction rollers 22 journaled in said chain 1 nel,so as toreceive and support a bearing ring 23 which is secured to the under side the machine frame, as indicated in the drawings, the shaft sections 9 passing over the hearing rings 23 and being. geared to the differential gear in the manner above described. This permits the front and rear axles to turn on vertical axes for the purpose of steering the machine;

At one side, each of the annularbolsters' 20 is provided With worm teeth 24 which are engaged by right and left hand worm gears 25 and 26 fast on a Worm shaft 27.

mounted in suitable bearings at one side I of the machine frame, the shaft 27 being provided at one end with a pinion 28 which meshes with a bevel gear wheel 29 on an upits [outercorresponding movementto'the front and rear axles cn their vertical axes. 32 desig mates supports extending downwardly from the bolsters and embracing the front and rear axles 2' and 3. j

In FigsB and-4, the crank shaft '2' is provided at its opposite ends with; universal joints 33 having connected therewith longi-- tudinally extensible drive shaft sections, each comprising an outer tubular member 34 and the inner telescopie'member At end, each-of said extensible shaft sections is connected by a universal joint 36 to a short shaft 37 havingon its extrem; 1 ity a bevel pinion 38 which meshes directly I vrith'the master. wheel 17 jof-jthe adjacent 'clilferenti'al gear. The construction just le ferred to dispenses with the gears 14 and sets of differential gearingon said axles, fore and aft drive shaft sectionseoupled to 16, and theshort vertical. shaft15- shown and described in c'onnection'with Figs' ,1

v and 2-, while the universal joints 33 and'36 in connection withthe telescopic "drive shaft sections admit of the turningofthefrontand rear axles'as wellas the-necessary up and down relativ movementLbetween the frame and vaxles in case the, frame is sup,-

ported by springs, in accordan'ce with the.

usual automobile and.motorjtruek practice. Under both constructions ahd m -r,ange' meats hereinabove particularly set forth, it

will be seen that the engine is'mounted-in the center of the. inachine frame and con- Lmsaoo in the running gear of the vehicle to provide "for the steering movements of the axles, and the relative up and down movements between the frame or chassis of the vehicle and the axles on which said frame is carried. r

. The truck hereinabove particularlydescribed is adapted to have any desired form of body mounted thereon, in accordance with the use to which the completed mav chine-is to be put.

-V\ hat is claimed is:

In a motor vehicle, a truck frame, front and rear axles supporting the frame and mounted to turn on vertical axes, steering mechanism for simultaneously turning said axles in opposite directions, and driving mechanism comprising a motor crank shaft supported on the frame midway between, the axles and below the truck frame, duplicate and actuated by the motor shaft, and vertical shafts locatedin the center of movement of sa d axles and geared to said drive shaft sections and to'the master wheelsof the sets 'of difierential gearing.

In testimony whereof I aflix my signature in presenceIof'two witnesses.

v GEORGE W..SCH\VOOB.

' .VVitnesses: I

'F. F. MCGEE, C. BRALDX. 

